One more thing I plan to cover the outdoor plant during the night I am buying lengths of 3/4" pvc piping and connecting the corners with 90 degree elbow with side out measuring 3/4"x3/4"x3/4", so they all connect. Then I will cover the rectangular pvc "boxes" with black plastic wrapping going around it. Then, I guess I put this box on at night when the sun goes down and take it off in the day when the sun comes up, right? It's only a 2" plant now, when do I put the plant in the ground outside? I will be transferring the plant to a 3 gallon container with drainage built into the container when I put it outside.